*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html,body{
    width: 100%;
    height: 100%;
    font-family: "Microsoft YaHei", tahoma, arial, 'Hiragino Sans GB', '\5b8b\4f53', sans-serif;
}

a{
    text-decoration: none;
}
ul,li{
    list-style: none;
}
i,em{
    font-style: normal;
}
b,strong{
    font-weight: normal;
}
.clearfix{
    zoom: 1;
}
.clearfix:after{
    content: "";
    clear: both;
    display: block;
    height: 0;
    visibility: hidden;
}

.D_is{
    display: flex;
}
.D_isc{
    align-items: center;
}
.ml_5{
    margin-left: 5px;
}
.ml_12{
    margin-left: 12px;
}
.container{
    width: 990px;
    margin: auto;
}
.contai{
    width: 1190px;
    margin: auto;
}
